MOSFETs fit for heavy automotive tasks

Three new 60V N-channel trench MOSFETs are specifically designed for high-current automotive applications such as motor/body load control, ABS, power train management and injection systems.

Fairchild Semiconductor has three new 60V N-channel trench mosfets specifically designed for high-current automotive applications such as motor/body load control, ABS, power train management and injection systems.

The FDB035AN06A0, FDP038AN06A0 and the FDD10AN06A0 are the first 60V devices from Fairchild's new line of medium-voltage (60-150V) PowerTrench products for automotive applications.

(In May 2002, Fairchild released three 75V trench mosfets for 42V automotive applications).

The mosfets in this family are successfully qualified according to the internationally accepted AEC Q101 standard and their PowerTrench technology offers the lowest on-resistance per package type in the industry.

With their very low gate charge, these medium-voltage devices are particularly well suited for high-power applications.

Typically, in many of the new automotive applications several devices must be paralleled to achieve a very low overall switch resistance.

But because of the low gate charge of PowerTrench mosfets, the required drive current - and therefore the size of the drive circuitry - is reduced.

For example, the FDB035AN06A0 features a total gate charge of 124nC, combined with an ultra-low on-resistance of 3.5mohm maximum at room temperature in a TO-263 package.

For inductive load switching the device has an unclamped inductive surge (UIS) capability for single and repetitive pulses of 625mJ at 70A.

"The FDB035AN06A0, FDP038AN06A0, and the FDD10AN06A are only the first of many new 60V PowerTrench mosfets we will release in the coming months", says Greg Hendry, marketing manager for automotive mosfets in Fairchild's Discrete Power Business Unit.

We are currently characterising other 60, 100 and 150V devices and will release them for production as soon as the characterisation is complete.

Samples of many of these devices are already available today".

PowerTrench devices are developed and manufactured in Fairchild's 8in discrete power wafer fab, in Mountaintop, Pennsylvania; a manufacturing plant long recognised by industry observers for its technical leadership in power discretes for the automotive industry.

(This was Electronicstalk's Top Story on 5 October 2002).

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